body{margin:0;font-family:Segoe UI,sans-serif;background:linear-gradient(135deg,#0f2027,#203a43,#2c5364);color:#fff;display:flex;justify-content:center;align-items:center;height:100vh}.container{max-width:800px;text-align:center;padding:2rem;background:rgba(255,255,255,.05);border-radius:16px;box-shadow:0 4px 30px #0000004d;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}h1{font-size:2.5rem;margin-bottom:1rem}p{font-size:1.3rem;line-height:1.6}.nav{margin-top:2rem}button{background:#ffffff22;border:none;padding:.8rem 1.5rem;margin:0 1rem;font-size:1rem;color:#fff;border-radius:8px;cursor:pointer;transition:background .3s ease}button:hover{background:#ffffff44}